Twin bombings investigation focuses on IS

Turkey is focusing efforts on the Islamic State group in investigating a suspected suicide bombing in Ankara that killed up to 128 people, officials said on Sunday.

Two suspected suicide bombers hit a rally of pro-Kurdish and labor activists near the city's main train station on Saturday, three weeks before elections.

Two senior security sources said initial signs suggested Islamic State was behind the Ankara attack, and that it bore striking similarity to a July suicide bombing in the town of Suruc near the Syrian border, also blamed on the radical Islamists.